Files
zap.stream/src/hooks/cards.ts
2024-09-17 11:18:20 +01:00

115 lines
3.3 KiB
TypeScript

import { useMemo } from "react";
import { RequestBuilder, TaggedNostrEvent } from "@snort/system";
import { useRequestBuilder } from "@snort/system-react";
import { CARD, USER_CARDS } from "@/const";
import { findTag } from "@/utils";
export function useUserCards(pubkey: string, userCards: Array<string[]>, leaveOpen = false): TaggedNostrEvent[] {
const related = useMemo(() => {
// filtering to only show CARD kinds for now, but in the future we could link and render anything
if (userCards?.length > 0) {
return userCards.filter(t => t.at(0) === "a" && t.at(1)?.startsWith(`${CARD}:`));
}
return [];
}, [userCards]);
const subRelated = useMemo(() => {
const splitted = related.map(t => t[1].split(":"));
const authors = splitted
.map(s => s.at(1))
.filter(s => s)
.map(s => s as string);
const identifiers = splitted
.map(s => s.at(2))
.filter(s => s)
.map(s => s as string);
const rb = new RequestBuilder(`cards:${pubkey}`);
if (pubkey) {
rb.withOptions({ leaveOpen }).withFilter().kinds([CARD]).authors(authors).tag("d", identifiers);
}
return rb;
}, [pubkey, related]);
const data = useRequestBuilder(subRelated);
const cards = useMemo(() => {
return related
.map(t => {
const [k, pubkey, identifier] = t[1].split(":");
const kind = Number(k);
return (data ?? []).find(e => e.kind === kind && e.pubkey === pubkey && findTag(e, "d") === identifier);
})
.filter(e => e)
.map(e => e as TaggedNostrEvent);
}, [related, data]);
return cards;
}
export function useCards(pubkey?: string, leaveOpen = false): TaggedNostrEvent[] {
const sub = useMemo(() => {
const b = new RequestBuilder(`user-cards:${pubkey}`);
if (pubkey) {
b.withOptions({
leaveOpen,
})
.withFilter()
.authors([pubkey])
.kinds([USER_CARDS]);
}
return b;
}, [pubkey, leaveOpen]);
const userCards = useRequestBuilder(sub);
const related = useMemo(() => {
// filtering to only show CARD kinds for now, but in the future we could link and render anything
if (userCards.length > 0) {
return userCards[0].tags.filter(t => t.at(0) === "a" && t.at(1)?.startsWith(`${CARD}:`));
}
return [];
}, [userCards]);
const subRelated = useMemo(() => {
const splitted = related.map(t => t[1].split(":"));
const authors = splitted
.map(s => s.at(1))
.filter(s => s)
.map(s => s as string);
const identifiers = splitted
.map(s => s.at(2))
.filter(s => s)
.map(s => s as string);
const rb = new RequestBuilder(`cards:${pubkey}`);
if (pubkey) {
rb.withOptions({ leaveOpen }).withFilter().kinds([CARD]).authors(authors).tag("d", identifiers);
}
return rb;
}, [pubkey, related]);
const data = useRequestBuilder(subRelated);
const cardEvents = data ?? [];
const cards = useMemo(() => {
return related
.map(t => {
const [k, pubkey, identifier] = t[1].split(":");
const kind = Number(k);
return cardEvents.find(e => e.kind === kind && e.pubkey === pubkey && findTag(e, "d") === identifier);
})
.filter(e => e)
.map(e => e as TaggedNostrEvent);
}, [related, cardEvents]);
return cards;
}